Device for boring connecting rods



W. 1. BROWN. DEVICE roa 50mm; conuscr'm'e RODS.

v APPLICATION FILED JU NE 2. 1920. Q May 2,

4 SHEETS-SHEET W. J. BROWN.

DEVICE FOR BORING CONNECTING RODS.

' APPLICATION FILED lUNE 2, 1920. I 1,414,337. Patented May 2, 1922.

4 SHEETS-SHEET 3 w. 1. BROWN.

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I l mm H I v um/whoa 3%.! MlliamJBmwn A Mom 15 cf adjustment necessa y for centering and laterally and .transverselyadjusting and vide means in connection with my device-fer machining not only" hear ngs set, With n a.

invention isto provide m'6aI lSWh8 1fQby the tool may be rendered automatically inopera-j I, meeting s uddeni ndne resistance Z UNITED STATES.

" WILBIAM' JY'B OWN, 0 F, NEW-Yong; e

1 HDEVICEEOR BonineibomvEeflme nbnsli w" I :whcm it' miig cmicerfi: 1

WILLIAM J. BRQlvlflflyal ,c tizen Of-theUn-ited:Stafcegaand rsident of 'Be it known that I;

v NewYerk, inthe cbnnty bf Ki-ngs anjd State ugi specification. I I e v vThis inv enision relates to boring, and reaming devices in g'eneral -and particularly to bfNe York, have invented certain ne mand iisefiil Improvements in Devices for Boring -COI1I1ecting..;Rods, "OftWhlGh the following is the liindaadapfqed' for boring, bearingsyand bushings of r connectingv 'i'od's -for intern-a1 ,ncmbusition engines. v y

Its ;.object is to .pitovlde a comparatively simple and i-nexpensivemajchine jpera ble by 4:

hand and so arranged astc'perjmii; jg'nyl kind firmly holding a connecting rod; the bear- ;in'gsjbf whichere to 'be machined. I

' Anothei' ebjeeiI-of my invention. is to pro- YC Im-ejcting rod, but' a1so individual; separate bushings or bearings hichf'may be "later" set ina connecting rod or pin) to any me when dufing' the'ntting"operation;'

"i device is .d esignedff0i' boi ing reaining "combination.ivith'meichineparts' r 21s a-detaiI of Bushing 31 13161.

H The aforementioned and further xobj ectsnf 45 myfinventi'0-n; -Will be-'m0r e"fu1ly apparent "from "the following description and the ac-f c'onfpanyin'g drawings; foi min'g' part dffthis' -i -Fiigu 'lis a top View 'ofmy dei icef 1 ,Figni'es l and gaggingde vicel amusement dfthe 'biaqketji Figune 5 :is a side ele at-ion 0f y device. .Eigures' 5, andS-ene detail views O f{191 6 ferred forms of the spindle feeding-01' zenigure I 9 is; the; f i'onheleiratic i Of my dei form of a: length adjustment Ydei iee,

vto lie-fit connecting, reds. with -neWfbear-ings.

I #speci mjion of-nettr'siatentg fPatented Ma-y 231922;. iqacim'fima heel-:2, 1920;: seri iin esspcs.

ii' li eigiii,{delve toe-115 fcrinternal connbii'sticnengines aftei" having .beenl inpperaptign for a lengfihj of time While th irlibearings Work d HQIiSufEer siderabledefonnacion v 'When such defonmziticnhes taken place it "is fveryifdiliicult tc barra e ibEWithOilt mate fikallly influencing the-future ivoifk ing of the p i igmy d viwj h u p r p the ist'aindeiid 1')iic' vided L with faced "raised p011 parts 4bfbracket '5ib w y f t d' g Rlizibly icd'ged'in ithe. end bearings 10 0i thefs'lfleve "9 ia' "hand eperated; 'hoyingepim lle' 13,havi 1ig ah'and crank l ifby means :of which it'meyb'e-mmed: The'sp'indle pQftiOn pa'slsi-ngthi'bn'gH-tlie fs'lefeve isifinlely' thfeaded that of member 12 which engage it. The

workingend of the spindle is reduced at 16 and possesses at its end an eccentrically dis posed pin 17 (Figures 8 and 4) adapted to receive a tool holder 18 provided witli an aperture also out of center for receiving pin 17.- -A set screw 19 facilitates the positioning shaped bearing or bushing holder or vise 23 adjustable to any desired height'by means of bolts 24 in slots 25. 7

Adjusting plates 26 (Figure 2) facilitate clamping in the vise bushings of various sizes. Below the vise and set into the standard 2 a pair of adjustable bolts 27 is provided for clamping a pistonrod, indicated in dashed and dotted lines, from the sides.

Directly beneath and at the center of the standard a U-shaped yoke 28 is attached and is provided with two other set screws 29 and 30, the latter'passing'through the standard.

The second set" of clamping screws serve for pressing against the Web of the connecting rod.

At the lower part and at the center of the standard a slot 31 is provided for receiving a conical pin 32 held in place bynut 33 at any desired height. By way of this pin the bushing ofthe connecting rodowhich is not being bo'red'is held in perfectly centered position. j Y

In order to allow for better'adjustments and particularly in cases where the connecting rod is deformed an eccentric 34 (Flgure 10) is provided at theend of a through going By moving pin 32 of Figure 9 and pin 35 0f Figure 10 in s1ot31 length adjustments may be made to suit the length dimension of any connecting rod. j

The conical bearing-receiving pins assure the correct centering of the rods-end not engaged by tool 20. r y

When a connecting rod is'properly placed and clamped in position and the tool head 18 adjusted to cut or ream to desired dimension spindle 1'3 isturned by crank 14.

.The threaded semi-cylindrical shell 12 engages the threads 15 of spindle 13 whereby {it isfed or propelled forwards. When the 7 7 tool 20 encounters sudden resistance, due for nstance to improper setting up: of the deviceor the connecting rod, the member or shell, 12, being yieldingly held under spring cylindrical pin, as-and a conical pin 32' a I takes the place of pin 32.,

tension, automatically disengages the spindle as the spindle thread lifts it out of align ment.

Thus the spindle is permitted to revolve in end bearings 10 of sleeve 9 while not moving forward. I i

This feature becomes of great importance in'use when unskilled labor is employed for operating my devlce. It also serves as safeguard 1n the event of unforeseen changes -in the properties of the bearing material;

The bushing or bearing holder orvise -Wlth 1 its adjusting plates for making fine adjustmentsis another important feature for facilitating the preparation and finishing of bearings prior to being put into the'conn'ect-f ingro. r

With the conical phase or 32"the"device assures perfect parallel alignment of. the wrist pin bushing andthe head ofa connecting rod. l j i Having thus described my invention'and reserving for myself the right to make changes and improvements within the broad .7

scope of my idea, I claim 1. In a bearing boring device for connecting rods having a threaded tool spindle, tool spindle feeding means engaging the spindle threads, spring meansfor keeping said feedi ingmeans n engagement with the splndle and facilitating said feeding means o; be liftedby the threads of and to disengage the spindle when the latter meets resistance,

2. In a bearing boring device for connect ing rods having a hand operated tool spindle provided with a threaded portion,'athreadedelement adapted tonormally engage the ioo threaded spindle portion, thus making the latter operative means for keepingsaidele ment normal engagement with the spindle and adapted to permit, said'elementdisengaglng the spindle when the latter 'meets with undue; resistance, thus making i n operative.

3. In a connecting rod. boring and reamthreaded spindle, a spindle sleeve having smooth end bearings for guidingsaidspin- I ing device, a horizontally disposed'partia'lly j dle, means providedin said sleeve for en-,5}

gaging the threaded spindle portion and for making the spindle operative, said means I adaptedto be automatically liftedqby the:

threaded spindle portion, thus making the "spindle inoperativev when said tool meets.

with sudden resistance, H

4. An apparatus of the character [described, comprising in combination, agbase, a standard extending perpendicularly theretoprovided with-vertical guiding means at, 1ts upper end, an adjustable, bushing or bearing support engaging said guiding means, an adjustable spindle support attachedat one side of said standard,.means provided. in said standard for; facilitating.-

the adjustment of said spindle support, a;

1,414,337- J i i 3 spindle lodged in said support, provided at ton rod provided at the lower part of said one end with an operating crank, the oppostandard,' means for transversally adjusting 10 site end adapted for receiving a tool holder, a piston rod, and means for olarnpin'g the a fine thread provided at the spindle poradjustedpistonrod in proper positlon. tion lodged in said support, a threaded re- Signed at New York in the county of New movable semi-cylindrical element engaging York and State of-New York this 3rd day the threaded spindle portion under spring of May A. D. 1920. I tension, means for laterally adjusting a pis- WILLIAM J.- BROWN. 

